122927540 has 24 divisors (see below), whose sum is σ = 264153120. Its totient is φ = 48027168.

The previous prime is 122927507. The next prime is 122927543. The reversal of 122927540 is 45729221.

It is a super-2 number, since 2×122927540² = 30222360180903200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122927497 and 122927506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122927543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70610 + ... + 72329.

It is an arithmetic number, because the mean of its divisors is an integer number (11006380).

Almost surely, 2^122927540 is an apocalyptic number.

122927540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122927540 is an abundant number, since it is smaller than the sum of its proper divisors (141225580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122927540 is a wasteful number, since it uses less digits than its factorization.

122927540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142991 (or 142989 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 122927540 is about 11087.2692760661. The cubic root of 122927540 is about 497.2213063292.

The spelling of 122927540 in words is "one hundred twenty-two million, nine hundred twenty-seven thousand, five hundred forty".